CN206692642U - High effective household biogas production device - Google Patents

Abstract

The utility model discloses a high-efficiency domestic biogas producer. By arranging a monomer two-phase anaerobic digestion and separation fermentation device in the tank body of the producer, the traditional existing multiple mixed fermentation tanks (pools) with low and ineffective gas production effects are changed. In a stable situation, the tank body of the producer is divided into upper and lower parts of the device body, the relationship between the three major bacterial groups is changed, and the acid-producing phase and the methanogenic symbiotic phase are separated and fermented to produce the best reaction and avoid mutual interaction. Backstop effect, the concentration of the acid-producing phase is more than 20%, which is more conducive to the efficient decomposition of fermented substances, and produces a large amount of nutrient solution, which is sufficient for the symbiosis of the upper layer of acetic acid-producing, hydrogen-producing, and methane-producing symbiotic phase bacteria, so that the methane-producing Bacteria produce gas efficiently, and are not affected by sensitive environments, ensuring more stable gas production, reaching small, efficient, stable, safe and hygienic commodity standards, farmers can use it after buying it back, filling the gap in the biogas market at home and abroad, and the gas production rate It is 5 times that of rural biogas digesters and more than 2 times that of other biogas fermentation tanks at home and abroad.

Description

Efficient domestic biogas generator

technical field

The utility model belongs to the technical field of biogas fermentation devices, in particular to a reactor for monomer two-phase anaerobic digestion, separation and fermentation, and high-efficiency continuous production of biogas, which makes biogas fermentation move to a new level and creates a new biogas reaction system than the existing one. Small and efficient domestic biogas generators with twice the gas production rate can be circulated in the market, and the Chinese smart products that farmers can use after buying them have filled the gap in the biogas market at home and abroad.

Background technique

Existing biogas fermentation tanks (anaerobic reactors) at home and abroad, including rural biogas digesters (tanks), are multi-phase mixed anaerobic digestion and fermentation reactions. Since biogas fermentation is a multi-bacteria biological reaction change project, the fermentation tank (pool ) Three major bacterial clusters: hydrolytic bacterial clusters, acid-producing bacterial clusters, acetic acid-producing, hydrogen-producing, and methane-producing symbiotic bacterial clusters, interact, influence each other, and reverse each other, so the three major bacterial clusters cannot be very good Give full play to their respective advantages and restrict the single gas production rate of biogas fermentation tanks (pools), which is also a major bottleneck in the development of biogas and hinders the development of biogas business.

The biogas digesters (tanks) currently used in rural areas of our country are still in the original basic structure, and there are many problems: raw materials are mostly input at one time, gas production changes from low to high to stop, intermittent production, biogas is sometimes absent, and it is not easy to use ;The raw materials entering the fermentation tank (tank) have not been effectively filtered, and the impurities of chicken, beef and pig hair in the raw materials are not easy to remove, and they are easy to be covered in the tank (tank). It is dirty and tiring, and no one is willing to pick it up a second time after picking it up once. After the fermentation tank (tank) is covered again, no gas will be produced, so many biogas tanks (tank) are discarded; Moreover, after the biogas digester is built, its position is fixed and cannot be circulated in the market. Due to the above problems, the development and utilization of biogas new energy in rural areas is progressing slowly. Although the country has spent hundreds of billions of yuan to build biogas digesters (tanks) in rural areas, many are built and many are discarded.

Utility model content

The purpose of the utility model is to provide a high-efficiency domestic biogas generator for monomer two-phase anaerobic digestion, separation and fermentation, aiming at the deficiencies of the above-mentioned prior art.

The technical solution adopted for the purpose of realizing the utility model is: the high-efficiency domestic biogas generator includes a storage material filter tank and a producer tank body, and the bottom of the storage material filter tank passes through the feed pipe and the bottom of the producer tank body. connected, the producer tank is provided with a monomer two-phase anaerobic digestion and separation fermentation device, and the monomer two-phase anaerobic digestion and separation fermentation device includes a device body that divides the producer tank into upper and lower parts. A plurality of through holes are arranged on the device body.

The device body is composed of one or more porous plates.

The holes on the perforated plate are distributed from small to large from left to right.

The holes on the perforated plate are distributed from thin to dense from left to right.

An umbrella-shaped automatic stirring device is arranged above the monomer two-phase anaerobic digestion and separation fermentation device in the tank body of the producer.

The feeding pipe is provided with a hand pump, and the two sides of the hand pump are respectively provided with one-way valves on the feeding pipe.

The hand pump includes a liquid storage bin communicated with the feed pipe, the liquid storage bin is connected with a pumping chamber, and a pumping piston driven by a push-pull rod is arranged in the pumping chamber.

A flexible isolation membrane is arranged inside the liquid storage bin.

The push-pull rod runs through the pump chamber and extends into the producer tank, and a plurality of stirring blades are arranged at the front end.

The inside wall of the tank body of the producer is provided with a liquid stabilizing tank, the upper part of the liquid stabilizing tank is provided with a discharge pipe with a control valve, and the top of the producer tank body is provided with an air outlet pipe with a control valve.

A vertical filter net and a horizontal filter net are arranged in the material storage filter pool.

The storage filter tank is provided with a first partition and a second partition, and the storage filter tank is divided into the first zone, the second zone and the third zone, and a vertical filter is set in the middle of the first partition between the first zone and the second zone , The lower part of the second zone is provided with a horizontal filter screen connecting the first partition and the second partition, the bottom of the second partition is open, and the bottom of the third zone communicates with the bottom of the producer tank through the feed pipe.

The automatic stirring device is composed of one or more overlapping umbrella-shaped covers with openings at the top.

The beneficial effects of the utility model are:

1) The tank body of the producer is divided into upper and lower parts by adopting a monomer two-phase anaerobic digestion and separation fermentation device, so as to effectively separate the acid-producing phase from the symbiotic phase bacteria that produce acetic acid, hydrogen and methane, and can Effectively increase the concentration of the acid-producing phase in the lower layer to more than 20%, which is conducive to the efficient acidolysis of the feed material, so that the upper layer of methanogenic symbiotic bacteria is fully nutrient-rich, and the high-efficiency gas production of the methanogenic bacteria is not affected, ensuring stable gas production.

2) The material storage filter tank can effectively filter out light miscellaneous hard objects such as hair and heavy objects such as sand and stones in the raw materials, so that the raw materials will not be covered when they are fermented in the tank of the producer, and the content of effective fermentation substances entering the producer can be effectively increased , to increase gas production, the ratio of gas production to tank capacity reaches 1 to 1.5 at room temperature, and is no less than 0.8 in winter, which is more than five times higher than the existing rural biogas digesters (tanks);

3) It can be circulated in the market, and farmers can buy it in the market when they need it. Farmers can buy it back and use it, which fills the gap in the domestic and foreign biogas markets. The gas production rate is 5 times that of rural biogas digesters and more than 2 times that of other biogas fermentation tanks.

4) The manual stirring rod can be stirred regularly or irregularly to make the bacteria in the tank active, increase the density, and increase the acid production. If the gas is used urgently, it can be stirred for 3 to 5 minutes in advance, and the effect is better;

5) Umbrella-shaped automatic stirring device uses the effect of biogas bubbles to drive the fermentation liquid to turn up and down continuously, so that the producer can ferment more fully and last longer, and produce more gas quickly;

6) The high-efficiency biogas generator of this utility model is the first at home and abroad, and it is intelligently made in China. It has a simple, reasonable, novel and practical structure, easy operation, no crusting, no need to remove the tank, and produces gas every day. The production device is more conducive to market circulation, farmers can buy it in the market when they need it, and it is convenient for installation, commissioning and maintenance. Farmers can buy it back and use it, which fills the gap in the domestic and foreign biogas markets. The gas production rate is 5 times that of rural biogas digesters and more than 2 times that of other biogas fermentation tanks.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of the assembly structure of the present utility model;

Fig. 2 is a kind of structural representation of perforated plate in the utility model;

Fig. 3 is another schematic diagram of the structure of the porous plate of the present invention.

detailed description

As shown in Figures 1-3: the high-efficiency domestic biogas generator of the present utility model includes a storage filter tank 1 and a producer tank 10, and a first partition 2 and a second partition are arranged in the storage filter tank 1 Plate 3 divides the storage material filter tank 1 into the first zone a, the second zone b and the third zone c, the middle part of the first partition 2 between the first zone a and the second zone b is provided with a vertical filter screen 4, and the lower part of the second zone b The horizontal filter screen 5 connecting the first dividing plate 2 and the second dividing plate 3 is set, and the bottom of the second dividing plate 3 has an opening 6 to realize the communication between the second zone b and the third zone c, and the bottom of the third zone c is provided with a manual The feed pipe 17 of the pressure pump communicates with the bottom of the producer tank 10 . The concentration of raw materials in the storage filter tank 1 is adjusted to 5-9% and enters a zone a in the storage filter tank 1, and is scientifically and efficiently filtered by the vertical filter screen 4 and the horizontal filter screen 5, and light miscellaneous hard objects such as hair float on the On the upper part of the filter box, heavy objects such as sand and stones fall on the bottom, and regular cleaning is carried out. When the raw materials are added, some fine hairs will enter the second zone b through the vertical filter 4 with the water flow, and after being buffered in the second zone b, the fine hairs float up. The organic fermentation raw material enters the third area c through the horizontal filter 5 and the opening 6 at the lower end of the second partition 3, and enters the bottom of the producer tank 10 from the feed pipe 17 for anaerobic fermentation.

The producer tank body 10 is provided with a monomer two-phase anaerobic digestion separation fermentation device, and the monomer two-phase anaerobic digestion separation fermentation device includes a device body 14 that divides the producer tank body into upper and lower parts , the device body 14 is provided with a number of through holes. 2 and 3, the device body 14 is composed of one or more porous plates 14-1, the holes 14-2 on the porous plate 14-1 are distributed from small to large from left to right, and the holes are porous The holes 14-2 on the plate 14-1 are distributed from thin to thick from left to right. The producer tank 10 is composed of porous plates 14-1 with different pore diameters stacked up and down. The high-concentration raw materials are fully fermented in the acid-producing phase bacteria group at the lower part of the monomer two-phase anaerobic digestion and separation fermentation device to provide a large amount of nutrient solution. Hole 14-2 enters the upper part of the monomer two-phase anaerobic digestion and separation fermentation device. During the process of pumping raw materials, there will be no fluctuations in the upper liquid phase, effectively ensuring the efficient production of biogas by the nutrient solution in the methanogenic symbiotic phase.

In the producer tank 10, an umbrella-shaped automatic stirring device is arranged above the monomer two-phase anaerobic digestion and separation fermentation device, and the automatic stirring device is composed of one or more umbrella-shaped covers 12 with openings at the tops stacked on each other. The umbrella cover is connected with the side wall of the producer tank 10 through the support rod 13 . Umbrella-shaped automatic stirring device utilizes the effect of generating biogas bubbles to drive the fermentation liquid in the gas-producing phase to continuously turn up and down, so that the nutrient solution in the gas-producing phase in the producer tank 10 can be fermented more fully and for a long time, and the gas production is fast and large. One 2 cubic meters The producer produces 2 to 4 cubic meters of biogas per day at normal temperature, which is more than 5 times higher than the existing biogas digester (tank).

The feed pipe 17 is provided with check valves 19 on both sides of the hand pump. The hand pump includes a liquid storage bin 22 communicated with the feed pipe 17. The liquid storage bin 22 is connected to a pump. The pressure chamber 20, the front end of the pump pressure chamber 20 communicates with the liquid storage chamber 22 through the communication port 21, the pump pressure chamber 20 is provided with a pumping piston 8 driven by a push-pull rod 7, and the push-pull rod 7 runs through the pump pressure chamber 20. The bin 20 extends into the producer tank 10, and a stirring blade 15 is arranged near the front end thereof. In this way, it is possible to effectively pump the raw material to the lower part of the producer tank 10 by manipulating the push-pull rod 7, and at the same time of pumping, realize the effective stirring of the acid-producing liquid phase at the lower part of the producer tank 10, so that the bacterial flora in the tank becomes active , the density increases, the acid production increases, and then provides sufficient nutrient solution for the methanogenic phase, increasing the gas production.

The inner wall of the tank body 10 of the producer is provided with a stabilizing tank 16, and the upper part of the stabilizing tank 16 is provided with a discharge pipe 11 with a control valve, which is used to control the discharge of biogas slurry and biogas residue. The stabilizing tank 16 extends to the producer The lower part of the tank body 10 can be effectively used as a green fertilizer and a green insecticide and sterilizer because the organic matter of the fermentation raw material in the lower part is fully decomposed, and the discharged biogas slurry and biogas residue are stable.

A gas outlet pipe 9 with a control valve is arranged on the top of the tank body 10 of the producer, so that the biogas on the upper part of the body can be connected to appliances such as a biogas stove through the gas outlet pipe 9 for use.

The liquid storage chamber 22 is provided with a flexible isolation membrane 18. By arranging the flexible isolation membrane 18, it is possible to effectively prevent the fermentation raw material from entering the pump pressure chamber 20 and avoid causing blockage to the pump pressure chamber 20. Fill with water or lubricating liquid, seal between the pump chamber 20 and the push-pull rod 7 with a sealing mechanism such as a seal ring, effectively improve the stability and reliability of the pump chamber 20 and the service life of the pump piston 8 .

The working process of this producer is as follows: Raw materials (plant orange stalks, domestic sewage, human, livestock and poultry manure, factory organic waste water and other fermented products) enter the storage filter tank, and after scientific and efficient filtration, the livestock and poultry hair and hard objects are removed. After the raw material is filtered, it enters the acid-producing phase in the lower part of the producer tank 10 through the hand pump and the feed pipe 17 for hydrolysis to produce acid to obtain a nutrient solution. The acid production phase is less affected by the concentration. Under the action of manual pumping of raw materials and stirring, acid production is rapid and efficient. The acid production nutrient solution enters the upper methanogenic symbiotic phase bacteria group through the monomer two-phase anaerobic digestion and separation fermentation device. Fast and efficient gas production. In this way, two-phase anaerobic digestion of monomers, separation and fermentation can be realized, and the effect of high-efficiency gas production can be achieved. During the whole process, the sensitive bacterial flora of the upper methanogenic phase will not be affected by the added raw materials, thus effectively ensuring stable and efficient gas production. There will be no cover inside the producer, and the biogas generated is connected to the biogas stove and other appliances by the biogas outlet pipe on the upper part of the tank body 10 of the producer. After fermentation, the biogas slurry and residue are automatically discharged from the discharge pipe at regular intervals, which is green fertilizer and green pest control. sterilizer.

The gas production rate of the biogas generator of the utility model is more than one time higher than that of the best existing biogas fermentation tank (anaerobic reactor), and the gas production rate of the biogas tank in rural areas is five times. The principle is: monomer two-phase separation and fermentation, hydrolysis of acid-producing bacteria group is suitable for high-concentration fermentation at medium temperature and above, the feed concentration is more than 20%, which is twice as high as the feed concentration of 6-8% in the existing fermenter, and high-efficiency biogas One-third of the volume of the producer is hydrolyzed and the output of the acid-producing phase bacteria group is equal to or greater than the overall acid-producing capacity of the original fermenter. The formula is: 1/3x (above 20%) ≥ 1x (6-8%), ∵ two-phase separation fermentation has no mutual backstop effect, ∴ play a greater role. The high-efficiency biogas generator's methane-producing symbiotic phase bacteria group accounts for two-thirds of the normal tank, so the gas production is more than twice that of the original fermenter (accounting for one-third of the volume). The formula is: 2/3 gas production ≥ 1/3×2 gas production. ∵There is no backstop factor in two-phase separation fermentation ∴It can play a greater role. The gas production rate of the "high-efficiency biogas generator" is more than double that of the existing biogas fermentation tank (reactor) based on the calculation of gas production or acid production. "The test proves that the gas production rate of the monomer two-phase separation fermentation high-efficiency biogas generator is 2 to 3 times the same volume as the existing biogas multi-phase mixed fermentation tank (anaerobic reactor). The high-efficiency household biogas generator" can produce continuously without knots The cover and the tank without removing can produce more gas every day, and the feeding and discharging of materials and slag are convenient and hygienic. It is a small and efficient domestic biogas generator that is safe to use and meets commodity standards. The 2m ³ high-efficiency biogas generator has a gas production capacity of 8-10m ³ in rural biogas digesters, and the gas supply is guaranteed every day throughout the year.

The technical solution of the utility model is not limited within the scope of the embodiments described in the utility model. The technical contents not described in detail in the utility model are all known technologies.

Claims (9)

1. a kind of high effective household biogas production device, including bin stock filtering ponds and production device tank body, the bin stock filtering ponds bottom leads to Cross feed pipe and connected with producing the bottom of device tank body, it is characterised in that：Monomer diphasic anaerobic is provided with the production device tank body Separation and fermentation device is digested, the monomer TPAD separation and fermentation device includes the production device tank body being divided into Under two-part device body, be laid with some through holes on described device body.

2. high effective household biogas production device as claimed in claim 1, it is characterised in that：Described device body is by one or one Porous plate composition above.

3. high effective household biogas production device as claimed in claim 2, it is characterised in that：Hole on the porous plate is from left to right In ascending distribution.

4. high effective household biogas production device as claimed in claim 2, it is characterised in that：Hole on the porous plate is from left to right In by dilute to thick distribution.

5. high effective household biogas production device as claimed in claim 1, it is characterised in that：In the list in the production device tank body Umbrella shape self- poking arrangement is provided with above body TPAD separation and fermentation device.

6. high effective household biogas production device as claimed in claim 1, it is characterised in that：Hand pressure is provided with the feed pipe Pump, the handlance both sides on the feed pipe in being respectively arranged with check valve.

7. high effective household biogas production device as claimed in claim 6, it is characterised in that：The handlance includes and the charging The containing liquid chamber of pipe connection, the containing liquid chamber are connected with pump pressure storehouse, are pumped the pump pressure piston that pull bar driving is provided with storehouse.

8. high effective household biogas production device as claimed in claim 7, it is characterised in that：Set in the containing liquid chamber it is flexible every From film.

9. high effective household biogas production device as claimed in claim 7, it is characterised in that：The pull bar runs through the pump pressure storehouse And extend in the production device tank body, nearby it is provided with paddle in front end.